Device Default Settings

Cacti has multiple ways to create Devices. Those methods include:

When using any of these methods, Cacti needs a way to apply a default for a new Device if the user does not specify on, be it any of the three methods above. That is what this settings sub-tab if for.

General Defaults

In the image below, you can see the General Defaults. These settings cover a number of Device attributes.

General Defaults

Those settings include:

NOTE: Device Threads is only applicable when using the spine binary

SNMP Defaults

Similar to the General Defaults, the SNMP Defaults control what SNMP settings to use for new *Devicess if the user does not specify any. The image below shows the settings when using first SNMP v2 and then SNMP v3. If you are using SNMP v1 or v2, you will have much less required settings.

SNMP Defaults

SNMP Defaults

Those settings include:

Availability / Reachability

Cacti's Availability / Reachability define how to perform initial checks prior to polling to see if the Device is alive or not. Attempting to gather large amounts of data from a Device that is down, is counter-productive.

Availability / Reachability is generally performned using a ping. These pings come in many formats, and Cacti supports all of the reasonable ones. In the image below, you can see the settings for one of the combination cases. Depending on your ping method, you may receive less options.

SNMP Defaults

Those options include:

Up / Down Settings

The Up / Down Settings define how many polling cycles that a Device must not respond to be considered truly Down, and when at device is returning from Down, how many polling cycles to keep a device in Recovering state before returning it to Up. The image below shows the two settings for the Device. There is really no reason to explain these two settings in any additional detail.

SNMP Defaults


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